2-Bromo-6-methylpyridine 1-oxide CAS 91668-84-7
| CAS No. | 91668-84-7 |
| Molecular Formula | C6H6BrNO |
| Molecular Weight | 188.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-Bromo-6-methylpyridine 1-oxide is closely related to an amide group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2-Bromo-6-methylpyridine 1-oxide (CAS 91668-84-7) is a high-purity analytical reference standard with the molecular formula C6H6BrNO and a molecular weight of 188.02 g/mol.
Structurally, 2-Bromo-6-methylpyridine 1-oxide (C6H6BrNO) contains an amide group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 188.02 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 2-Bromo-6-methylpyridine 1-oxide meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C6H6BrNO |
| Molecular Weight | 188.02 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Bromo Standards
- 4-Bromo-2-methoxypyridine (CAS 100367-39-3)
- 4-Bromo-2-methylpyridine 1-oxide (CAS 100367-74-6)
- 2-Bromo-5-methylpyridin-3-ol (CAS 1003711-30-5)
- 2-BROMO-5-HYDROXY-3-PICOLINE (CAS 1003711-43-0)
- 4-Bromo-3-methylpyridine 1-oxide (CAS 10168-58-8)
- 2-Bromo-5-methoxypyridine (CAS 105170-27-2)
- 4-Bromo-3-methoxypyridine (CAS 109911-38-8)
- 2-Bromo-4-hydroxymethylpyridine (CAS 118289-16-0)
Recommended Standards
- 2-bromo-6-methylpyridin-3-ol (CAS 23003-35-2)
- 3-Bromo-1-methylpyridin-4(1H)-one (CAS 87875-76-1)
- 2-Bromo-4-methoxypyridine (CAS 89488-29-9)
- 3-Bromo-2-(hydroxymethyl)pyridine (CAS 52378-64-0)
- t-Boc-aminooxy-PEG6-propargyl (CAS 2093152-83-9)
- 4-Chloro-2-(((pyridin-3-ylmethyl)amino)methyl)phenol (CAS 827328-95-0)
- 4-((3-(Azepane-1-carbonyl)phenyl)amino)-4-oxobutanoic acid (CAS 1003688-34-3)
- 4-(prop-2-yn-1-yl)thiomorpholine-3,5-dione (CAS 1565520-88-8)
- 1,3-Dip-tolyl-1H-pyrazol-4-ol (CAS 1202030-23-6)
- Tranexamic Acid EP Impurity C (CAS CATO-C4X-177123)
- 4-Chloro-6-pyridin-2-ylpyrimidine (CAS 284050-18-6)
- Prednisolone 17-Acetate (CAS 52628-64-5)
- 5-Oxohexanenitrile (CAS 10412-98-3)
- Insulin Degludec Impurity 25 (CAS CATO-C4X-215725)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com